Assigxoe to samuel c



(No Model 7 KEISER.

V CABINET SHAVE. N0.'300,Z66.' Patented June 10, 1884.

UNITED STATES PATENT (Enrica.

JOHN A. KEISER, or CINCINNATI, OHIO, ASSIGNOR TO SAMUEL o. TATUM & 00.,or SAME PLACE.

CABINET-SHAVE.

SPECIFICATION aimin part of Letters Patent No. 300,266, dated June 10,1884.

Application filed February 28, 1884. (No model.)

To all whmn it new concern:

Be it known that I, JOHN A. KEISER, a citi zen of the United States, anda resident of Oincinnati, in the county of Hamilton and State of Ohio,have invented certain new and useful Improvements in Cabinet-Shaves, ofwhich the following is a specification.

My invention relates to an improved cabinet-shave, and other similartools.

The object of my invention is to provide ready means for removing orinserting the bit or knife, all of which wilt be fully set forth in thedescription of the accompanying drawings.

Figure l is a perspective view of my invention with the bit removed.Fig. 2 is a front elevation of my improvement with the bit in positionfor use. Fig. 3 is a bottom plan view of Fig. 2. Fig. 4: is a verticalsection on line a .r, 2.

A A represent the handles of my improved shave.

B represents the central portion of the stock of the shave, which, withthe handles, is preferably made of malleable iron, cast in one piece. arepresents ears cast on and with the stock 13.

C represents the swiveling or detachable bit-face; G, the stationarybit-face, which forms a part of the stock B.

'0 represents ears attached to the face 0, and provided with. pivots 2',which hinge the ears I) to the ears 0.

(1 represents ayoke or bar connected to the ears I).

The parts C, I), I), and d are made of metal formed in one piece, andarranged so as to move freely upon the pivots i.

1) represents a cam connected by pivot c to the center of the yoke (Z.

E represents the bit or knife, which is made to fit into the head B, asshown in Figs. 2 and 4:. In order to hold the knife in position bydetachable fastenings, it is essential to have it gripped at twopointsfirst, at or near the cutting edge, and, second, at the centralpoint of the knife, sufficiently near the upper end to prevent itsrocking or moving. To accomplish this I provide lugs h at each end ofthe cutter E on the bottom of face 0, and adapted to bear against thecutter E upon each side of 0 the shaving-slot L.

The mode of operation in inserting the knife is as follows: Fig. 1represents the device with knife or bit removed from the stock of theshave and the cam l) hanging loosely upon the yoke d. The knife E isinserted with the proper feed, (the edge depending below the faces 0 O,)and cam D is turned up= ward so as to bring the shoulder against theface of the knife. This movement draws the lugs h on the face 0 firmlyagainst the blade E, pressing or gripping it tightly against the face 0of the stock by the inward movement of the face 0, caused by thepressure of the shoulder of cam D against the upper end of the knife,forcing the yoke (l outward. This mode of constructing the stock andattaching the parts holds the knife firmly in position, and yet allowsit to be instantly inserted and removed.

The principal feature of'my invention consists in constructing thepivoted portion of the stock so as to grip the knife near thecuttingedgc, and central at or near its upper end, and at the same timenot be apt to become acci- 7 dcntally disconnected from its bearings.

An inferior modification of my invention would be to employ athumb-screw passing through the yoke (Z, instead of the cam D, forgripping the upper end of the knife E. Such a construction would becovered by the first and second claims herein. Spokcshaves and othertools could be made in a similar manner as the within-describedcabinet'shave. Another modification could be made by having 85 thclugsit attached to the face (3 and the shaving-slot in the same side of thebit-face. So, too, one lug it might be employed near the center of thebit-plane; but it would not be as efficient as the plan here shown. 90

I claim 1. A shave composed of the stock B and bit-face O, incombination with the bit-face C, swiveled by a pintle placed parallelwith the axis of rotation of the bit-face, and a fastening device, D,suitably supported, and adapt ed to grip the bit at or near the top andforce one of the bit-faces against the lower edge of the bit, wherebythe bit will be held to its place by said fastening'I) and bit-face,independently of other fastenings, substantially 8. The combination ofthe stock B and sta 15 tionary bit-face 0, provided with ears (1, thebit-face 0, provided with ears b and yoke d, and swiveled to ears a bypintles i, and the cam-lever D, fulcrulned 0n yoke d, forinstantaneously fastening and releasing the bit, substantially asdescribed.

In testimony whereof I have hereunto set my hand.-

JOHN A. KEISER.

Vitnesses:

EDWARD B0711), ANDREW E. Sco'r'r.

